CN116697754A - Zinc ingot melting furnace feeding system and method - Google Patents
Zinc ingot melting furnace feeding system and method Download PDFInfo
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- CN116697754A CN116697754A CN202310880845.3A CN202310880845A CN116697754A CN 116697754 A CN116697754 A CN 116697754A CN 202310880845 A CN202310880845 A CN 202310880845A CN 116697754 A CN116697754 A CN 116697754A
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- Prior art keywords
- zinc ingot
- melting furnace
- zinc
- preheating device
- slideway
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- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 title claims abstract description 296
- 238000002844 melting Methods 0.000 title claims abstract description 102
- 230000008018 melting Effects 0.000 title claims abstract description 101
- 238000000034 method Methods 0.000 title claims description 21
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 45
- 239000011701 zinc Substances 0.000 claims abstract description 45
- 239000010410 layer Substances 0.000 claims abstract description 31
- 230000007246 mechanism Effects 0.000 claims abstract description 14
- 239000002356 single layer Substances 0.000 claims abstract description 7
- 239000007788 liquid Substances 0.000 claims description 21
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 18
- 239000003546 flue gas Substances 0.000 claims description 18
- 238000010438 heat treatment Methods 0.000 claims description 16
- 230000008569 process Effects 0.000 claims description 8
- 230000032258 transport Effects 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 description 8
- 239000002918 waste heat Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 230000001154 acute effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
- F27B14/0806—Charging or discharging devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D13/00—Apparatus for preheating charges; Arrangements for preheating charges
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
- F27B14/0806—Charging or discharging devices
- F27B2014/0812—Continuously charging
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The invention relates to a zinc ingot melting furnace feeding system, which comprises a zinc ingot stack, wherein the zinc ingot stack is formed by a plurality of single-layer cuboids paved by zinc ingots or a plurality of multi-layer cuboids piled up; a melting furnace; the preheating device is arranged outside the melting furnace and is adjacent to the feeding port of the melting furnace; the pushing device is provided with a linear telescopic pushing mechanism of the controller and is positioned at one side of the starting end of the slideway of the preheating device; the lifting device is provided with a lifting mechanism of a lifting height controller, the lifting mechanism is positioned between the preheating device slideway and the pushing device, the length of the preheating device slideway is larger than that of the zinc ingots or zinc ingot stacks in the moving direction of the preheating device slideway, and is smaller than twice that of the zinc ingots or zinc ingot stacks in the moving direction of the preheating device slideway, and the lifting mechanism replaces manual zinc ingot feeding in a purely mechanical mode, so that the investment cost can be saved and the operation and maintenance cost can be reduced compared with mechanical arm feeding.
Description
Technical Field
The invention relates to the field of automatic feeding of metal ingots in nonferrous smelting industry, in particular to a feeding system of a zinc ingot melting furnace.
Background
In the zinc bar production process, zinc ingots are required to be continuously added into a zinc ingot melting furnace for melting, then zinc bars are continuously cast out from a bar outlet of the melting furnace, and a stable liquid level is required to be ensured in the zinc ingot melting furnace, so that the frequency of adding the zinc ingots is required to be relatively stable. In the existing zinc strip production, some old production lines adopt a mode of manually adding zinc ingots, and some advanced production lines adopt full-automatic manipulators to add zinc ingots, so that the labor intensity of workers can be reduced.
The inventors found in the study of the prior art that:
in the manual adding mode, namely zinc ingots are added once every interval, the labor intensity of workers is increased by the operation mode, the zinc adding frequency cannot be ensured, the liquid level in a zinc ingot melting furnace can be suddenly high or low, and the quality of zinc bars is affected; in the adding mode of the industrial robot, the investment cost of the mechanical arm equipment is very high, the occupied area is relatively large, the maintenance and repair cost is high in the using process, stronger technical support is needed, the investment ratio of the mechanical arm is too high for a small-scale production line such as zinc strip production, and the investment recovery period is prolonged; in addition, zinc ingots before entering the furnace are not preheated in the prior art, the melting time can be prolonged when cold ingots enter the furnace, so that the temperature fluctuation in the furnace is large, and the instantaneous gas quantity can be increased for the furnace with automatic temperature control, thereby wasting energy.
Disclosure of Invention
In order to overcome the defects in the prior art, the inventor adopts the technical measure of preheating before entering the furnace, and utilizes a simple lifting and pushing device to complete the work of the zinc ingot melting furnace, and adopts the following technical scheme: a zinc ingot melting furnace feed system comprising:
zinc ingots;
a zinc ingot stack, which is a single-layer cuboid or a multi-layer cuboid formed by stacking a plurality of zinc ingots in a tiled manner;
the melting furnace is used for melting the zinc ingots, the outer wall of the melting furnace is provided with a melting furnace feed port penetrating from outside to inside, and the opening of the melting furnace feed port is large and small to allow the zinc ingots or zinc ingot stacks to pass through;
the preheating device is arranged outside the melting furnace and is adjacent to the feeding port of the melting furnace;
the preheating device slideway is arranged at the lower part of the preheating device and allows the zinc ingots or zinc ingot stacks to pass through in a sliding way, the end point of the preheating device slideway is opposite to the feed inlet of the melting furnace, and when the zinc ingots or zinc ingot stacks pass through, the preheating device heats the zinc ingots or zinc ingot stacks;
the pushing device is provided with a linear telescopic pushing mechanism of the controller, is positioned at one side of the starting end of the slideway of the preheating device, and the telescopic end moves back and forth towards the feeding port of the melting furnace to push the zinc ingot or the zinc ingot stack to move towards the feeding port of the melting furnace;
the lifting device is provided with a lifting mechanism of a lifting height controller, is positioned between the preheating device slideway and the pushing device, is provided with the zinc ingot or the zinc ingot stack at the top, and lifts the bottom surface of the zinc ingot or the zinc ingot stack to be higher than the sliding surface of the preheating device slideway when the pushing device moves;
the length of the preheating device slideway is larger than that of the zinc ingot or the zinc ingot stack in the moving direction of the preheating device slideway, and is smaller than twice that of the zinc ingot or the zinc ingot stack in the moving direction of the preheating device slideway.
Further, the method further comprises the following steps:
the liquid level monitor is positioned in the melting furnace and used for monitoring the liquid level height in the melting furnace;
the control system is in signal communication with the liquid level monitor, the pushing device and the lifting device, and controls the pushing device and the lifting device to convey the zinc ingot or the zinc ingot stack according to the liquid level condition in the melting furnace.
Further, the method further comprises the following steps:
and the flue gas system is communicated with the melting furnace and the preheating device, and is used for conveying the hot flue gas in the melting furnace into the preheating device and heating the zinc ingot or the zinc ingot stack by utilizing the hot flue gas in the melting furnace.
Further, the method further comprises the following steps:
the lifting device is arranged on the transportation trolley;
the trolley rail is positioned at one side of the starting end of the preheating device slideway, and the trolley rail is matched with the trolley rail to convey the lifting device to a position between the preheating device slideway and the pushing device;
the zinc ingot overturning device is used for overturning the zinc ingots or the zinc ingot pile mechanism, and is positioned on the track line of the transport trolley, and the overturned zinc ingots or zinc ingot pile mechanism is arranged at the top of the lifting device.
Furthermore, a preheating device slideway guide part is further arranged at the intersection of the preheating device slideway and the lifting route of the lifting device, and the preheating device slideway guide part is provided with a circular arc chamfer along the lifting route of the lifting device.
Further, the melting furnace feed inlet is provided with a feed inlet slideway facing the bottom of the melting furnace.
Further, the feed inlet slideway is at an angle to the horizontal ground.
Further, a section of inclined slideway with the same or similar angle with the slideway of the feeding hole is arranged on the slideway of the preheating device close to the slideway of the feeding hole of the melting furnace.
Further, preheating device slideway positioning plates matched with the width of the zinc ingot or zinc ingot pile are arranged on two sides of the preheating device slideway in the transportation direction, and/or lifting device positioning plates matched with the width of the zinc ingot or zinc ingot pile are arranged on two sides of the lifting device in the pushing direction of the pushing device;
the preheating device slideway positioning plate and the lifting device positioning plate are of strip plate-shaped structures and support the zinc ingots or zinc ingot stacks without deflection in the pushing process.
A zinc ingot melting furnace feeding method, comprising the following steps:
binding the zinc ingots with trapezoidal entrance cross sections into a zinc ingot stack;
the zinc ingot pile is turned over by the zinc ingot turning device to enable the bottom edge of the trapezoid cross section of the zinc ingot to be upward;
stacking the turned zinc ingots on the top of the lifting device;
removing the binding of the zinc ingot stack;
the transportation trolley transports the lifting device to a position between the preheating device slideway and the pushing device along the transportation trolley track;
the lifting device is lifted to the position that the zinc ingot at the uppermost layer of the zinc ingot stack is opposite to the pushing device;
the pushing device pushes the zinc ingots or a layer of zinc ingot stacks to the heating range of the preheating device;
the pushing device is retracted;
the preheating device heats the zinc ingot or a layer of zinc ingot stack to 150-200 ℃;
the control system judges whether the zinc ingot or a layer of zinc ingot stack is required to be added according to the information of the liquid level monitor;
if yes, sending a starting signal to the lifting device and the pushing device;
the lifting device lifts the uppermost layer of the zinc ingot of the rest zinc ingot stack to be opposite to the pushing device;
the pushing device pushes the zinc ingots or a layer of zinc ingot stacks to the heating range of the preheating device;
the zinc ingot or a layer of zinc ingot stack which is originally arranged in the heating range of the preheating device is pushed by the zinc ingot or a layer of zinc ingot stack which enters after entering, and enters the melting furnace through the feed inlet of the melting furnace;
the control system continues to monitor the liquid level height judgment in the melting furnace according to the liquid level monitor.
Compared with the prior art, the invention has the beneficial effects that: the labor intensity of post workers is reduced; the pure mechanical mode replaces manual zinc ingot feeding, and compared with mechanical arm feeding, the method can save investment cost and reduce operation and maintenance cost; the zinc ingot before entering the furnace is preheated by utilizing the exhaust gas of the melting furnace, so that the furnace temperature is stabilized, the zinc strip production efficiency is improved, and the energy is saved.
Drawings
FIG. 1 is a front view of an embodiment of the present invention;
FIG. 2 is a top view of an embodiment of the present invention;
FIG. 3 is an enlarged view of a portion of the ramp guide of the preheating device in accordance with the embodiment of the present invention;
FIG. 4 is a schematic diagram of the turning of a zinc ingot stack according to the present invention;
wherein the label is expressed as:
100-zinc ingots; 110-zinc ingot pile;
200-melting furnace; 210-a flue gas system; 220-a melting furnace feed inlet; 221-a feed inlet slideway; 230-a liquid level monitor;
300-preheating device; 310-preheating a device slideway; 311-a preheating device slideway guide part; 320-a preheating device slideway positioning plate;
400-lifting device; 410-a transportation trolley; 411-a transportation trolley track; 420-a lifting device positioning plate;
500-pushing device;
600-zinc ingot turning device.
Detailed Description
The technical solutions in the embodiments are clearly and completely described, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Referring to fig. 1 to 4, in order to overcome the defects in the prior art, the inventor adopts the technical measure of preheating before charging into the furnace, and completes the work of the zinc ingot melting furnace by using a simple lifting and pushing device, and adopts the following technical scheme: a zinc ingot melting furnace feed system comprising:
zinc ingot 100; generally, for ease of demoulding, the zinc ingot is a block-shaped structure with an isosceles trapezoid cross section, and in other embodiments, the zinc ingot 100 may be a regular cuboid or other block-like structure.
A zinc ingot stack 110 formed by a single-layer cuboid or a multi-layer cuboid formed by stacking a plurality of zinc ingots 100; referring to fig. 4, in the present embodiment, the zinc ingot stack 110 is formed by stacking a plurality of zinc ingots 100, and the zinc ingots are divided into a plurality of columns and a plurality of layers, and the layers can ensure that the zinc ingots 100 of the upper layer and the lower layer do not interfere with each other in the feeding process.
The melting furnace 200 is used for melting the zinc ingot 100, a melting furnace feed port 220 penetrating from outside to inside is arranged on the outer wall of the melting furnace 200, and the opening size of the melting furnace feed port 220 allows the zinc ingot 100 or the zinc ingot stack 110 or the single-layer zinc ingot stack 110 to pass through.
A preheating device 300 disposed outside the melting furnace 200 and adjacent to the melting furnace feed port 220; the form of preheating may be electric heating or thermal heating, and in this embodiment, the inventors utilize hot flue gas heating in the melting furnace 200;
a preheating device slideway 310, which is arranged at the lower part of the preheating device 300 and allows the zinc ingot 100 or the zinc ingot stack 110 to slide through, wherein the end point of the preheating device slideway 310 is opposite to the feed inlet 220 of the melting furnace, and the preheating device 300 heats the zinc ingot 100 or the zinc ingot stack 110 when the zinc ingot 100 or the zinc ingot stack 110 passes through;
the preheating device slideway 310 can be in various structural forms, such as a smooth rigid plane, a roller way and the like, as long as the zinc ingot 100 or the zinc ingot stack 110 can slide relatively under the action of external force, in the embodiment, referring to fig. 1 or 3, the pushing device 500 is used for pushing the single-layer zinc ingot stack 110, in other embodiments, if a small amount of feeding is needed for multiple times of feeding, the zinc ingot 100 can be pushed, or the zinc ingot 100 itself can be expressed in a single layer in the zinc ingot stack 110, namely, in the invention, the purpose of the invention can be achieved by simply pushing the zinc ingot 100.
The pushing device 500 is provided with a linear telescopic pushing mechanism of a controller, is positioned at one side of the initial end of the slideway 310 of the preheating device, and the telescopic end moves back and forth towards the direction of the feed inlet 220 of the melting furnace to push the zinc ingot 100 or the zinc ingot stack 110 to move towards the direction of the feed inlet 220 of the melting furnace; in some embodiments, to reduce the jacking force of the pusher 500, the preheater slide 310 may be set at a slope while maintaining the zinc ingot 100 or stack 110 relatively stable under friction. The pushing device 500 generally adopts an oil cylinder structure, so that the stroke is easy to control, and a mechanical matching mode of a gear and a rack can be adopted. In addition, in this embodiment, referring to fig. 3, the top surface of the pushing end of the pushing device 500 is slightly higher than the top surface of the zinc ingot 100 or the zinc ingot stack 110, usually about 5mm, which is to provide a small portion of downward pressure to the zinc ingot 100 or the zinc ingot stack 110 during the pushing process, or avoid the zinc ingot 100 or the zinc ingot stack 110 from tilting, and of course, in order to enable the pushing device 500 to completely push the zinc ingot 100 or the zinc ingot stack 110 into the preheating device 300, the pushing end of the pushing device 500 is higher than the top surface of the preheating device slideway 310.
The lifting device 400 is provided with a lifting mechanism of a lifting height controller, is positioned between the preheating device slideway 310 and the pushing device 500, is provided with the zinc ingot 100 or the zinc ingot stack 110 at the top, and lifts the bottom surface of the zinc ingot 100 or the zinc ingot stack 110 to be higher than the sliding surface of the preheating device slideway 310 when the pushing device 500 moves; in this embodiment, referring to fig. 1, the inventor adopts a scissor lifting mechanism, and in other embodiments, a plurality of driving lifting modes such as hydraulic driving, pneumatic driving and the like can be adopted.
The length of the preheating device slideway 310 is greater than the length of the zinc ingot 100 or the zinc ingot stack 110 in the moving direction of the preheating device slideway 310, and less than twice the length of the zinc ingot 100 or the zinc ingot stack 110 in the moving direction of the preheating device slideway 310. The length of the zinc ingot 100 or the zinc ingot stack 110 in the moving direction of the preheating device slideway 310 is less than twice, and the pushing device 500 is not directly affected by the heat source of the preheating device 300, so that two groups of materials can be pushed into each other, although the invention is limited to twice the distance, in other embodiments, the pushing force of the pushing device 500 device is enough, the pushing force can be multiple, but multiple times is multiple, and the dislocation of multiple groups of materials can occur, on the basis of reducing the equipment cost without using the power preheating device slideway 310, so the inventor is set to be within twice.
In another embodiment, the method further comprises:
a liquid level monitor 230, located in the melting furnace 200, for monitoring the liquid level in the melting furnace 200;
the control system is in signal communication with the liquid level monitor 230, the pushing device 500 and the lifting device 400, and controls the pushing device 500 and the lifting device 400 to convey the zinc ingot 100 or the zinc ingot stack 110 according to the liquid level condition in the melting furnace 200, and the control system has the function of realizing the automation of the whole equipment.
In another embodiment, the method further comprises:
and a flue gas system 210 which is communicated with the melting furnace 200 and the preheating device 300, and is used for conveying the hot flue gas in the melting furnace 200 into the preheating device 300, and heating the zinc ingots 100 or the zinc ingot stacks 110 by utilizing the hot flue gas in the melting furnace 200. The waste heat utilization of the flue gas system 210 is another invention point of the inventor, the inventor utilizes the flue gas in the heating process of the melting furnace 200 to convey the flue gas into the preheating device 300, and utilizes the waste heat to finish heating the material, however, in this embodiment, the preheating device 300 and the flue are coated with high temperature resistant materials, for example, the waste heat flue gas is too high, an air distribution device can be arranged in the flue gas system 210 to cool the waste heat flue gas, and the waste heat flue gas entering the preheating device 300 is usually not higher than 600 ℃.
In another embodiment, the method further comprises:
a transport cart 410, wherein the lifting device 400 is arranged on the transport cart 410;
a transporting trolley track 411, which is positioned on one side of the initial end of the preheating device slideway 310, wherein the transporting trolley 410 and the transporting trolley track 411 are matched to convey the lifting device 400 to the position between the preheating device slideway 310 and the pushing device 500;
the zinc ingot turning device 600 is used for turning the zinc ingot 100 or the zinc ingot stack 110, and is positioned on the route of the transportation trolley track 411, and the turned zinc ingot 100 or zinc ingot stack 110 is placed on the top of the lifting device 400. In this embodiment, the inventor has found that if the cross section of the entering zinc ingot 100 is in a block structure with an isosceles trapezoid shape, in the design of this embodiment, if the cross section of the entering zinc ingot 100 is in a block structure with an isosceles trapezoid shape, in the forward pushing process, the lower part of the zinc ingot 100 is an acute angle, such as a small pushing force, and a scratch is generated between the zinc ingot 100 or the zinc ingot stack 110 and the preheating device slideway 310, because the lower bottom surface of the zinc ingot 100 is an acute angle with the vertical surface, and the upper top surface is an obtuse angle with the vertical surface, the zinc ingot 100 belongs to casting molding, the surface is rough, residual scum exists, and the bottom edge and scum scratch are serious, or even blocked in the pushing process of the zinc ingot 100. To avoid this, the inventors turned the zinc ingot 100 prior to pushing is also one of the inventive works of the present invention.
Preferably, referring to fig. 3, a preheating device slideway guide part 311 is further provided at the intersection of the preheating device slideway 310 and the lifting route of the lifting device 400, and the preheating device slideway guide part 311 is a circular arc chamfer along the lifting route of the lifting device 400. During the lifting process of the lifting device 400, the turned zinc ingot 100 does not change in position due to too small a gap with the preheating device slideway 310.
In other embodiments, to facilitate the entry of the zinc ingot 100 or the zinc ingot stack 110, the melting furnace feed port 220 is provided with a feed port chute 221 toward the bottom of the melting furnace 200, the feed port chute 221 is at an angle of 35 degrees to 45 degrees relative to the horizontal ground, and the zinc ingot 100 or the zinc ingot stack 110 is rapidly entered under gravity when at the end of the preheating device chute 310. Similarly, the preheating device chute 310 is provided with a section of inclined chute near or at the same angle as the inlet chute 221 near the end of the melting furnace inlet 220.
In other embodiments, preheating device slideway positioning plates 320 matched with the width of the zinc ingot 100 or the zinc ingot pile 110 are arranged at two sides of the transporting direction of the preheating device slideway 310, and/or lifting device positioning plates 420 matched with the width of the zinc ingot 100 or the zinc ingot pile 110 are arranged at two sides of the lifting device 400 along the pushing direction of the pushing device 500;
referring to fig. 3, the preheating device slide positioning plate 320 and the lifting device positioning plate 420 are in a strip plate structure, and support the zinc ingot 100 or the zinc ingot stack 110 without deflection during pushing.
A zinc ingot melting furnace feeding method, comprising the following steps:
binding the zinc ingots 100 with trapezoidal entrance cross sections into a zinc ingot stack 110;
turning the zinc ingot stack 110 by using the zinc ingot turning device 600 so that the bottom side of the trapezoid cross section of the zinc ingot 100 faces upwards;
placing the turned zinc ingot stack 110 on top of the lifting device 400;
unbinding the zinc ingot stack 110;
the transportation trolley 410 transports the lifting device 400 along the transportation trolley track 411 between the preheating device slideway 310 and the pushing device 500;
the lifting device 400 is lifted to the position that the zinc ingot 100 at the uppermost layer of the zinc ingot stack 110 is opposite to the pushing device 500;
the pushing device 500 pushes the zinc ingot 100 or a layer of zinc ingot stacks 110 to the heating range of the preheating device 300;
the ejector 500 is retracted;
the preheating device 300 heats the zinc ingot 100 or the zinc ingot stack 110 to 150 ℃ to 200 ℃;
the control system judges whether the zinc ingot 100 or a layer of zinc ingot stack 110 is required to be added according to the information of the liquid level monitor 230;
if yes, sending a starting signal to the lifting device 400 and the pushing device 500;
the lifting device 400 lifts the uppermost layer of the zinc ingot 100 of the rest zinc ingot stack 110 to be opposite to the pushing device 500;
the pushing device 500 pushes the zinc ingot 100 or a layer of zinc ingot stacks 110 to the heating range of the preheating device 300;
the zinc ingot 100 or a layer of zinc ingot stacks 110 which are originally placed in the heating range of the preheating device 300 are pushed by the zinc ingot 100 or a layer of zinc ingot stacks 110 which enter later, and enter the melting furnace 200 through the feeding hole 220 of the melting furnace;
the control system continues to monitor the level height determination in the melting furnace 200 based on the level monitor 230;
after the control system determines that the zinc ingot stack 110 is not arranged at the top of the lifting device 400, the transportation trolley 410 returns to the zinc ingot turning device 600 to load the zinc ingot stack 110;
the lifting device 400 repeatedly unbundles the zinc ingot stack 110 and then repeats the steps after loading the zinc ingot stack 110.
The invention reduces the labor intensity of post workers; the pure mechanical mode replaces manual zinc ingot feeding, and compared with mechanical arm feeding, the method can save investment cost and reduce operation and maintenance cost; the zinc ingot before entering the furnace is preheated by utilizing the exhaust gas of the melting furnace, so that the furnace temperature is stabilized, the zinc strip production efficiency is improved, and the energy is saved.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (10)
1. A zinc ingot melting furnace feed system, comprising:
zinc ingots (100);
a zinc ingot stack (110) which is a single-layer cuboid or a multi-layer cuboid formed by stacking a plurality of zinc ingots (100) in a tiled manner;
a melting furnace (200) for melting the zinc ingots (100), wherein a melting furnace feed port (220) penetrating from outside to inside is arranged on the outer wall of the melting furnace (200), and the opening of the melting furnace feed port (220) is sized to allow the zinc ingots (100) or zinc ingot stacks (110) to pass through;
a preheating device (300) arranged outside the melting furnace (200) and adjacent to the melting furnace feed inlet (220);
a preheating device slideway (310) which is arranged at the lower part of the preheating device (300) and allows the zinc ingot (100) or the zinc ingot pile (110) to slide through, wherein the end point of the preheating device slideway (310) is opposite to the feed inlet (220) of the melting furnace, and when the zinc ingot (100) or the zinc ingot pile (110) passes through, the preheating device (300) heats the zinc ingot (100) or the zinc ingot pile (110);
the pushing device (500) is provided with a linear telescopic pushing mechanism of the controller, is positioned at one side of the starting end of the slideway (310) of the preheating device, and the telescopic end moves back and forth towards the feeding hole (220) of the melting furnace to push the zinc ingot (100) or the zinc ingot stack (110) to move towards the feeding hole (220) of the melting furnace;
the lifting device (400) is provided with a lifting mechanism of a lifting height controller, is positioned between the preheating device slideway (310) and the pushing device (500), is provided with the zinc ingot (100) or the zinc ingot stack (110) at the top, and lifts the zinc ingot (100) or the zinc ingot stack (110) to be higher than the sliding surface of the preheating device slideway (310) when the pushing device (500) moves;
the length of the preheating device slideway (310) is larger than the length of the zinc ingot (100) or the zinc ingot pile (110) in the moving direction of the preheating device slideway (310), and is smaller than twice the length of the zinc ingot (100) or the zinc ingot pile (110) in the moving direction of the preheating device slideway (310).
2. The zinc ingot melting furnace feed system of claim 1, further comprising:
a liquid level monitor (230) located within the melting furnace (200) for monitoring a liquid level height within the melting furnace (200);
the control system is in signal communication with the liquid level monitor (230), the pushing device (500) and the lifting device (400), and controls the pushing device (500) and the lifting device (400) to convey the zinc ingot (100) or the zinc ingot stack (110) according to the liquid level condition in the melting furnace (200).
3. The zinc ingot melting furnace feed system of claim 1, further comprising:
and the flue gas system (210) is communicated with the melting furnace (200) and the preheating device (300), and is used for conveying the hot flue gas in the melting furnace (200) into the preheating device (300) and heating the zinc ingots (100) or the zinc ingot stacks (110) by utilizing the hot flue gas in the melting furnace (200).
4. The zinc ingot melting furnace feed system of claim 2, further comprising:
a transport trolley (410), the lifting device (400) being arranged on the transport trolley (410);
a transportation trolley track (411) is positioned on one side of the starting end of the preheating device slideway (310), and the transportation trolley (410) and the transportation trolley track (411) are matched to convey the lifting device (400) to a position between the preheating device slideway (310) and the pushing device (500);
the zinc ingot overturning device (600) is used for overturning the mechanism of the zinc ingot (100) or the zinc ingot stack (110), and is positioned on the route of the transportation trolley track (411), and the overturned zinc ingot (100) or zinc ingot stack (110) is placed at the top of the lifting device (400).
5. The zinc ingot melting furnace feeding system according to claim 4, wherein a preheating device slideway guide part (311) is further arranged at the intersection of the preheating device slideway (310) and the lifting route of the lifting device (400), and the preheating device slideway guide part (311) is provided with a circular arc chamfer along the lifting route of the lifting device (500).
6. Zinc ingot melting furnace feed system according to claim 1, characterized in that the melting furnace feed (220) is provided with a feed slide (221) towards the bottom of the melting furnace (200).
7. The zinc ingot melting furnace feed system of claim 6, wherein the angle of the feed port slide (221) is 35 degrees to 45 degrees with respect to horizontal ground.
8. The zinc ingot melting furnace feed system of claim 7, wherein the preheating device chute (310) is provided with a section of inclined chute adjacent to one end chute of the melting furnace feed port (220) at the same or similar angle to the feed port chute (221).
9. The zinc ingot melting furnace feeding system according to claim 1, wherein preheating device slideway positioning plates (320) matched with the width of the zinc ingot (100) or zinc ingot pile (110) are arranged at two sides of the preheating device slideway (310) in the transportation direction, and/or lifting device positioning plates (420) matched with the width of the zinc ingot (100) or zinc ingot pile (110) are arranged at two sides of the lifting device (400) in the pushing direction of the pushing device (500);
the preheating device slideway positioning plate (320) and the lifting device positioning plate (420) are of strip plate-shaped structures, and support the zinc ingots (100) or the zinc ingot stacks (110) without deflection in the pushing process.
10. The zinc ingot melting furnace feeding method is characterized by comprising the following steps:
binding the zinc ingots (100) with trapezoidal entrance cross sections into a zinc ingot stack (110);
turning over the zinc ingot stack (110) by using the zinc ingot turning-over device (600) so that the bottom edge of the trapezoid cross section of the zinc ingot (100) faces upwards;
placing the turned zinc ingot stack (110) on the top of the lifting device (400);
unbinding the zinc ingot stack (110);
the transportation trolley (410) transports the lifting device (400) between the preheating device slideway (310) and the pushing device (500) along a transportation trolley track (411);
the lifting device (400) is lifted to the position that the uppermost layer of the zinc ingot (100) of the zinc ingot stack (110) is opposite to the pushing device (500);
the pushing device (500) pushes the zinc ingot (100) or a layer of zinc ingot stacks (110) to be within the heating range of the preheating device (300);
-the ejector (500) is retracted;
the preheating device (300) heats the zinc ingot (100) or a layer of the zinc ingot stack (110) to 150-200 ℃;
the control system judges whether the liquid level height in the melting furnace (200) needs to be added into the zinc ingot (100) or a layer of zinc ingot stack (110) according to the information of the liquid level monitor (230);
if the judgment is that the lifting device (500) and the pushing device (500) are sent to start signals;
the lifting device (500) lifts the uppermost layer of the zinc ingot (100) of the rest zinc ingot stack (110) to be opposite to the pushing device (500);
the pushing device (500) pushes the zinc ingot (100) or a layer of zinc ingot stacks (110) to be within the heating range of the preheating device (300);
the zinc ingot (100) or a layer of zinc ingot stacks (110) which are originally arranged in the heating range of the preheating device (300) are pushed by the later-entering zinc ingot (100) or a layer of zinc ingot stacks (110) and enter the melting furnace (200) through the feeding port (220) of the melting furnace;
the control system continues to monitor the level determination in the melting furnace (200) based on the level monitor (230).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310880845.3A CN116697754A (en) | 2023-07-18 | 2023-07-18 | Zinc ingot melting furnace feeding system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310880845.3A CN116697754A (en) | 2023-07-18 | 2023-07-18 | Zinc ingot melting furnace feeding system and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116697754A true CN116697754A (en) | 2023-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310880845.3A Pending CN116697754A (en) | 2023-07-18 | 2023-07-18 | Zinc ingot melting furnace feeding system and method |
Country Status (1)
| Country | Link |
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| CN (1) | CN116697754A (en) |
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2023
- 2023-07-18 CN CN202310880845.3A patent/CN116697754A/en active Pending
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